GB1360397A - Method for the production of an integral skin - Google Patents

Method for the production of an integral skin

Info

Publication number
GB1360397A
GB1360397A GB4528970A GB4528970A GB1360397A GB 1360397 A GB1360397 A GB 1360397A GB 4528970 A GB4528970 A GB 4528970A GB 4528970 A GB4528970 A GB 4528970A GB 1360397 A GB1360397 A GB 1360397A
Authority
GB
United Kingdom
Prior art keywords
cellular
skin
polymer
layer
monomer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4528970A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB4528970A priority Critical patent/GB1360397A/en
Priority to US00182150A priority patent/US3802949A/en
Priority to AU33689/71A priority patent/AU463076B2/en
Priority to FR7134221A priority patent/FR2107907B1/fr
Priority to DE19712147582 priority patent/DE2147582A1/en
Priority to IT29011/71A priority patent/IT938830B/en
Priority to BE773000A priority patent/BE773000A/en
Priority to NL7113065A priority patent/NL7113065A/xx
Publication of GB1360397A publication Critical patent/GB1360397A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/34—Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C08J9/283—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum a discontinuous liquid phase emulsified in a continuous macromolecular phase
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/05—Elimination by evaporation or heat degradation of a liquid phase
    • C08J2201/0504—Elimination by evaporation or heat degradation of a liquid phase the liquid phase being aqueous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/13—Cell size and distribution control while molding a foam
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/14—Plastic and nonmetallic article shaping or treating: processes forming integral skin on a foamed product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/17—Molding a foam containing a filler
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/18—Cross-linking a thermoplastic linear foam during molding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/918—Physical aftertreatment of a cellular product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249975—Void shape specified [e.g., crushed, flat, round, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
    • Y10T428/249989—Integrally formed skin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31511—Of epoxy ether
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

1360397 Cellular article with a non-cellular skin IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Sept 1971 [23 Sept 1970] 45289/70 Heading C3C [Also in Division B6] A method for making a cellular article having an integral skin of substantially non-cellular material over at least part of its surface comprises emulsifying water with a water-immiscible liquid monomer polymerizable to a thermoplastic material in the presence of an emulsifier therefor to form an emulsion having an aqueous disperse phase, polymerizing the liquid monomer to form a cellular polymer, drying the outer layer of said polymer over at least part of its surface, applying heat and pressure to said layer to raise its temperature above the softening point of the polymer and fuse said layer, and cooling the fused layer to form a non-cellular skin. The cellular product may have at least 95% of the cells of a diameter less than 7 Ám. and at least 90% less than 2 Ám. The liquid monomer preferably comprises at least 50% by weight of methyl methacrylate, whilst the emulsifier preferably comprises an unsaturated polyester of a bisphenol A epoxy-modified glycol and one or more ethylenically unsaturated dicarboxylic acids, the quantity of polyester lying within the range 0À3-5% by weight of the monomer. Polymeric materials may also be added to the mixture, e.g. a polymethyl methacrylate for use with methyl methacrylate. Ease of glazing is affected by the number of free radicals available for initiating the reaction. The polymerization may be initiated at a temperature within the range 10-50‹ C. in the presence of sufficient free radicals. The ability to form a skin may also be improved by copolymerizing the monomer with monoethylenically unsaturated comonomers which provide internal plasticization, e.g. 2-ethyl-hexyl acrylate, in an amount 5-20% by weight. The applied pressure should be less than that required to crush the cellular core and may be between 0À5 and 70 bar. The cellular polymer obtained from the polymerization reaction may be cut into smaller pieces which are subsequently provided with an integral skin by fusion. The cellular sheets having integral non-cellular skins may be moulded, in which moulding process at a temperature above its softening at least part of the surface is stretched. The surface of the cellular article may be patterned or ornamented, e.g. by transfer techniques. The polymeric material may also contain fillers, e.g. glass fibres. The examples refer to cellular materials formed from methyl methacrylate, polymethylmethacrylate and as emulsifier:-a polysiloxane (1); propoxylated bisphenol A unsaturated polyester (2), (3), (4), (5).
GB4528970A 1970-09-23 1970-09-23 Method for the production of an integral skin Expired GB1360397A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB4528970A GB1360397A (en) 1970-09-23 1970-09-23 Method for the production of an integral skin
US00182150A US3802949A (en) 1970-09-23 1971-09-20 Method for the production of an integral skin
AU33689/71A AU463076B2 (en) 1970-09-23 1971-09-20 Method forthe production ofan integral skin
FR7134221A FR2107907B1 (en) 1970-09-23 1971-09-23
DE19712147582 DE2147582A1 (en) 1970-09-23 1971-09-23 Process for the manufacture of cellular objects with an integral skin
IT29011/71A IT938830B (en) 1970-09-23 1971-09-23 METHOD FOR THE PRODUCTION OF A INTEGRAL SKIN
BE773000A BE773000A (en) 1970-09-23 1971-09-23 PROCESS FOR FORMING A NON-CELLULAR SKIN THAT IS BODY WITH ITS SUBSTRATE
NL7113065A NL7113065A (en) 1970-09-23 1971-09-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4528970A GB1360397A (en) 1970-09-23 1970-09-23 Method for the production of an integral skin

Publications (1)

Publication Number Publication Date
GB1360397A true GB1360397A (en) 1974-07-17

Family

ID=10436634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4528970A Expired GB1360397A (en) 1970-09-23 1970-09-23 Method for the production of an integral skin

Country Status (8)

Country Link
US (1) US3802949A (en)
AU (1) AU463076B2 (en)
BE (1) BE773000A (en)
DE (1) DE2147582A1 (en)
FR (1) FR2107907B1 (en)
GB (1) GB1360397A (en)
IT (1) IT938830B (en)
NL (1) NL7113065A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411439A1 (en) * 1994-03-31 1995-10-05 Schock & Co Gmbh Plastic molded body made of water-expanded acrylic resin

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958053A (en) * 1971-06-16 1976-05-18 Imperial Chemical Industries Limited Articles having integral transparent or translucent panels
GB1428371A (en) * 1972-06-08 1976-03-17 Ici Ltd Sheets
GB1430068A (en) * 1972-07-11 1976-03-31 Ici Ltd Cellular articles having integral decorative panels
GB1485776A (en) * 1974-01-10 1977-09-14 Ici Ltd Method of making a foamed article
US4026828A (en) * 1975-06-13 1977-05-31 Rohm And Haas Company Foamed thermoset articles and processes
IT1132206B (en) * 1980-07-18 1986-06-25 Snia Viscosa PROCEDURE FOR OBTAINING UNSATURATED POLYESTER RESIN-BASED CELL MATERIALS
JPS61162328A (en) * 1985-01-11 1986-07-23 Toyota Motor Corp Molding method of skin in integral foaming
US4775502A (en) * 1986-08-01 1988-10-04 Chafvin Jr Harry H Process for production of microcellular resin castings
EP0510521A3 (en) * 1991-04-26 1993-02-10 Nippon Zeon Co., Ltd. A method of preparation of foamed articles of polyvinyl chloride resins
DE10231830A1 (en) 2002-07-12 2004-01-22 Röhm GmbH & Co. KG Foam with compacted surface
DE102010040775A1 (en) 2010-09-15 2012-03-15 Evonik Degussa Gmbh facade panel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398224A (en) * 1965-07-07 1968-08-20 Pepperell Mfg Company Method of and apparatus for providing a polyurethane foam with a dense surface layer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411439A1 (en) * 1994-03-31 1995-10-05 Schock & Co Gmbh Plastic molded body made of water-expanded acrylic resin
WO1995027001A1 (en) * 1994-03-31 1995-10-12 Schock & Co. Gmbh Plastic moulding of water-expanded acrylic resin

Also Published As

Publication number Publication date
IT938830B (en) 1973-02-10
AU463076B2 (en) 1975-07-17
DE2147582A1 (en) 1972-03-30
US3802949A (en) 1974-04-09
FR2107907B1 (en) 1975-07-18
FR2107907A1 (en) 1972-05-12
NL7113065A (en) 1972-03-27
AU3368971A (en) 1973-03-29
BE773000A (en) 1972-03-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee